16. Diode Selection

Question.8

A TVS diode is used near a connector to protect the circuit from voltage spikes.
The TVS diode is unavailable, so it is replaced with a Zener diode of the same voltage rating.

Is this a safe replacement?

Yes – both TVS and Zener diodes clamp voltage
Yes – matching the voltage rating is enough
No – Zener diodes cannot handle high-energy spikes
No – Zener diodes are only used in AC circuits

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